3355 Mount Diablo Blvd, Lafayette, CA 94549 Property Records

Contra Costa County property record for 3355 Mount Diablo Blvd, Lafayette, CA 94549

Property Summary

Property Type	Commercial Office
Details	2,112 sqft · built 1965
Lot Size	0.077 acres (3,360 sqft)
Owner	Company Name on Record
Tax Bill	$8,225 (2025)
Deeds & Mortgages	Jan 2019 Transfer Sep 2017 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`233-080-051-3`

Property Details

APN / Parcel Number

Primary APN	`233-080-051-3`
Alternative APN	`233-080-051`

Interior

Stories	1 Story
Building Area	2,112 sqft Gross Area
1st Floor Area	2,112 sqft

Exterior

Year Built	Built 1965
Effective Year Built	Effective 1966
Exterior Material	Concrete Block
Construction Type	Concrete Block
Roof Type	Mansard
Roof Material	Composition Shingle
Lot Area	3,360 sqft (0.077 acres)
Lot Dimensions	100 ft deep x 35 ft wide
Garage Area	9,000 sqft

Location & Zoning

Street Address	3355 MT DIABLO BLVD
City	LAFAYETTE
State	CA
Zip	94549-4011
Property Category	Commercial
Property Type	Commercial > Office > Commercial Office
Legal Description	FRIENDSHIP FARMS POR LOT 1
Legal Subdivision	FRIENDSHIP FARMS
Legal Lot Number	1
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	3
Census Block	3000
Census Tract	349000

Owner

Source: Contra Costa County records, as of July 14, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	Company Name on Record
Mailing Address	PO BOX 641, LAFAYETTE, CA 94549-0641
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Jan 4, 2019	Quit Claim Deed Quitclaim
Sep 1, 2017	Quit Claim Deed, Transfer Quitclaim
Sep 1, 2017	Quit Claim Deed, Transfer Quitclaim

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Dec 26, 2018
Transfer Doc	0000001444
Record Updated	Oct 29, 2026

January 2019: Quit Claim Deed

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jan 4, 2019
Property Address	3355 MT DIABLO BLVD, LAFAYETTE, CA 94549-4011
Document Number	0000001444
Instrument Date	Dec 26, 2018
Instrument	1444
Record Updated	Jan 15, 2019

Transaction

Tax	$0.00
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	PO BOX 641 LAFAYETTE CA 945490641, LAFAYETTE, CA 94549-0641

September 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Sep 1, 2017
Property Address	3355 MT DIABLO BLVD, LAFAYETTE, CA 94549-4011
Document Number	0000160325
Instrument Date	Aug 15, 2017
Instrument	160325
Transaction Type	Transfer
Record Updated	Sep 5, 2017

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	PO BOX 641 LAFAYETTE CA 945490641, LAFAYETTE, CA 94549-0641

September 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Sep 1, 2017
Property Address	3355 MT DIABLO BLVD, LAFAYETTE, CA 94549-4011
Document Number	0000160324
Instrument Date	Aug 15, 2017
Instrument	160324
Transaction Type	Transfer
Record Updated	Sep 5, 2017

Transaction

Tax	$0.00
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	PO BOX 641 LAFAYETTE CA 945490641, LAFAYETTE, CA 94549-0641

Tax Assessment & Valuation

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Municipality	Lafayette City
Secondary School District	Acalanes Union High School District (09 - 12)
Elementary School District	Lafayette Elementary School District (KG - 08)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$548,079 (+2%) Land $196,781 Building $351,298
2025	$8,225.00 (+3.67%)	$537,333 (+4.04%) Land $192,923 Building $344,410
2023	$7,934.00 (+1.03%)	$516,470 Land $185,433 Building $331,037
2022	$7,853.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 15 policies
Nearby Flood Policies	15 in force
Nearby Flood Claims	6 (1982–2002)
Claims Outside the SFHA	1 of 6
Most Recent Claim	Dec 2002 · river or lake flooding
Claims by Event	Severe Storms & Flooding, Feb 1986 · 2 claims

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 63% of the US · lower than 78% of California
Wildfire Likelihood	0.05% annual chance
Exposure	Indirect within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005
Water Source	Surface water
Last State Inspection	Dec 2021
Lead	Under 1 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 128 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
AT&T Fixed Wireless · DSL	100 / 20

May also be available: Etheric Networks, T-Mobile, Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

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